Home / 83,539.30-115,222.10-54,474.07

Finding the Fourth Proportional to 83,539.30, 115,222.10 and 54,474.07

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Solution

The fourth proportional to 83,539.30, 115,222.10 and 54,474.07 is: 75,133.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,539.30 : 115,222.10 = 54,474.07 : x
  2. Step 2: Convert to fraction form
    83,539.30/115,222.10 = 54,474.07/x
  3. Step 3: Cross multiply
    83,539.30x = 115,222.10 × 54,474.07
  4. Step 4: Simplify right side
    83,539.30x = 6,276,616,396.56
  5. Step 5: Solve for x
    x = 6,276,616,396.56/83,539.30
  6. Step 6: Final answer
    x = 75,133.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.